Clinton lovell



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O.LOVELL. DIE FOR WIRE NAIL MACHINES. No. 340,886. Patented Apr. 27, 1886.

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2 sheets sheet 2. O. LOVELL.

DIE FOR WIRE NAIL MACHINES;

Patented Apr. 27, 1886. EMU v E m; 1 M M 1%. m fl wl 7 x i J. g Aw f w ,7 ,W

(No Model.)

UNITED STATES PATENT OFFICE.

CLINTON LOVELL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE ALBERT NAIL COMPANY, OF NEYV YORK, N. Y.

DIE FOR WIRE-NAIL MACHINES.

EZPECKEICATION forming part of Letters Patent No. 340,886, dated April 27, 1886.

Application filed September 25, 1885. Serial No. 178,140. (No model.)

.''[0 aZZ whom it may concern:

Be it known that I, CLINTON LQVELL, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Dies for \Vire-Nail ll'iachines, of which the following is aspecification.

This invention relates to the dies for severing lengths of wire and pointing the proximate ends of the partsinto which the lengths are severed, as shown in the wire-nail machine forming the subject of the application of N. G. Lewis for Letters Patent of the United States, filed July 19, 1884, No. 138,237.

The invention has for its object to enable the cutting and pointing dies to be adjusted in the blocks or holders which support them, so that they can be moved backward or forward, as may be required, toward and from each other, and also to provide adj ustable grippingdies, whereby the shanks ot' the nails may be serrated or barbed.

To these ends the invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a pair of blocks, one in elevation and one in section, having adjustable dies, two nails being shown between the dies. Fig. 2 represents an end elevation of the same. Fig. 3 represents a face view of one of the blocks shown in Fig. 1. Figs. 4, 5, and 6 represent one of the cutting and pointing dies. Figs. 7 and 8 represent, respectively, a side and sectional view of a nail formed by the dies shown in Figs. 1, 2, and 3. Figs. 9, 10, and 11 represent certain modifications in the harbingdies. Figs. 12 and 13 represent, respectively,

0 a side view and asection of the nails formed by the dies shown in Fig. 9.

The same letters of reference indicate the same parts in all the figures.

The cutting and pointing dies are inserted in 4 5 internally-t1]readed orifices in the blocks a f, and are supported by screws A, fitted in said orifices and adj ustable therein, so that they can move the dies outwardly or inwardly, and thus adjust them to the requirements of the work. Screws I5, inserted in the sides of the blocks a f and bearing on the sides of the dies 3,

are used to prevent the dies from moving away from their supporting-screws A. The euttingdies are in this instance cylindrical in crosssection, and to prevent them from ro- 5 tating theyare provided with side slots, 0, into which the screws B project. Said dies may be of any other suitable shape in cross sect-ion that may be desired.

4 4 represent the grippingdies, which are inserted in sockets in the ends of the blocks a f, and are adjusted by backing'screws A, and held where adjusted by side screws, B, in the same manner that the cutting and pointing dies are adjusted and held. The dies 4 4 and their sockets are preferably of dovetail form in cr0ss-scction, but may be of any other desired shape. Said dies 4 4 may be formed to corrugate the shanks of the nails, as shown in Figs. 1, 7, and 8, or to form a series of independent notches or barbs, as shown in Figs.

9, 11,12, and 13, to increase the holding-power of the nails when they are driven.

In Figs. 9 and 11 I have shown the blocks provided with supplemental dies 5 5, formed like the dies 4 4, to barb the shank. I prefer to make thedies 5 5 with barb-forming points, separated by a smooth intermediate portion, as shown in Fig. 9. The dies thus formed barb the nail near its head and point, and leave an intermediate smooth portion, as shown in Figs. 9 and 12. The power of the nail in holding one piece against another (as a box and its cover) is thus increased.

The barbs may be of any desired shape,and may extend the entire length of the nail, if preferred, as shown in Fig. 1]..

It will be seen that the adj ust-ability of the barbforming dies and their capability of beinginserted and removed enable them to form the barbs to any desired depth, and to be readily replaced at small expense. I do not limit myself, however, to adjustable and removable gripping and barbing dies, as said dies may be integral with the blocks. 5

Heretofore wire for nails has been barbed before the nails are made, two separate operations being required in barbing and forming the nails. By my improvement the nails are barbed and formed at one operation.

I claim- 1. The blocks a f, having the adjustable cutting and pointing dies formed to point two nails simultaneously, and means for holding said dies in any position to which they be adjusted.

5 2. The blocks a f having cutting and pointing dies, adjustable gripping-dies, and means for holding said gripping-dies in any position to which they may be adjusted.

3. Theblocks af, having cutting and point- IO ing dies and barb-forming dies, whereby the nails are barbed while being formed, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 26th day of August, 1885.

CLINTON LOVELL.

Witnesses:

Tr es. \VM. CLARKE, H. BROWN. 

